---
name: "blk_get_backing_dev_info"
section: "9"
platform: "linux"
package: "linux-manual-4.9"
version: "4.9.228-1"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/blk_get_backing_dev_info"
---

# blk\_get\_backing\_dev\_info(9)

get the address of a queue's backing\_dev\_info

## NAME

blk\_get\_backing\_dev\_info - get the address of a queue's backing\_dev\_info

## SYNOPSIS

**struct backing\_dev\_info \* blk\_get\_backing\_dev\_info(struct block\_device \*** *bdev***);**

## ARGUMENTS

*bdev*

device

## DESCRIPTION

Locates the passed device's request queue and returns the address of its backing\_dev\_info. This function can only be called if *bdev* is opened and the return value is never NULL.

## COPYRIGHT